The Arctic Ocean Curriculum Unit was created by the Arctic Research Consortium of the United States with funding from the North Pacific Research Board. This project aimed to update and revise existing Arctic Ocean-related lesson plans originally created by PolarTREC program teacher alumni. The format used lends itself to the changes in education - providing student-facing slide decks that allow
Understanding Physical and Chemical Parameters of Ocean Water Using CTD Profiles
Overview
A focus of the PolarTREC Southern Ocean Diatoms expedition was to collect water samples and physical profile data using oceanographic technology. Oceanographers rely on the real-time data transferred from the water column to the ship-based computers using a CTD sensor. The CTD measures conductivity (salinity), temperature and depth
This lesson includes a variety of research activities and a lab that all help demonstrate the science behind convection currents.
Objectives
Through the following activities and lab students will discover:
* that temperature and salinity affect the density of fluids (liquids and gases)
* how fluids with different densities interact with each other